/Engine/Source/Runtime/Engine/Classes/Components/TimelineComponent.h
Add a linear color interpolation to the timeline
void AddInterpLinearColor ( [UCurveLinearColor](API\Runtime\Engine\Curves\UCurveLinearColor) * LinearColorCurve, [FOnTimelineLinearColor](API\Runtime\Engine\Components\FOnTimelineLinearColor) InterpFunc, [FName](API\Runtime\Core\UObject\FName) PropertyName, [FName](API\Runtime\Core\UObject\FName) TrackName )